1, the customer service phone is busy: because the customer service phone is a hotline, there may be a large number of incoming calls that cause the customer service phone to be busy. You can try to call customer service during off-peak hours, such as morning or evening.
2. Wrong phone number: Please carefully check whether the phone number you dialed is correct. If you are not sure whether the number is correct, it is recommended to go to official website of Ningxia Telecom or other reliable information sources.
3. Network or telephone failure: sometimes there may be a network or telephone failure, resulting in the customer service phone can not be connected normally. You can try calling customer service again after a while, or ask Ningxia Telecom for help through other channels, such as official website or social media.